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The two grignard products of 4-mthylcyclohexanone gives merely two products when reacted with HBr and just a few percents of an alkene probably 4-methlycyclohexene. Explain
A piece of copper of mass 20.0g at 100.00C is placed in a vessel of negligible heat capacity, but containing 50.7g water at 22.0C. Calculate the final temperature of the water. (Assume no energy is lost to surroundings)
Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (-2341 kJ/mole)
Beakers 1 through 4 contain 2.3, 1.91, 5.985, and 0.52 g of dry potassium nitrate respectively. How many moles of potassium nitrate were recovered after the water evaporated
Diprotic Acids and Solution Equlibria, A 1.200 M solution of HCl is added to a solution containing 0.150 moles of sodium phosphate (Na3PO4). The resulting solution is then diluted to exactly 0.500 L
In the absorption spectrum of the hydrogen atom, the electron is promoted from n=2 level to the n=3 level. What energy does this correspond to in joules. Which of each following pair would you predict to have the higher boiling point and why
A solution of barium hydroxide at 25C is 0.125 M Ba(OH)2. What are the concentrations of hydronium ion and hydroxide ion in the solution
When compound Y is heated, it decomposes to the element X and hydrogen gas. Decomposition of 1g of Y yields 0.0250 mol of gas. Calculate the possible molar mass values for X.
Which of the following reactions notate the formation reaction of CO(g)? 1. C(s) + 1/2 O2(g) ? CO(g) 2. CO(g) ? C(s) + 1/2 O2(g) 3. 2C(s) + O2(g) ? 2 CO(g)
Explain what is the membrane potential in milivolts due to Na+ ions if the extracellular Na+ ions is 154 mM as well as the intracellular concentration of Na+ ions is 31 mM at 20 degree Celsius
Nitrogen and oxygen do not react appreciably at room temperature, as illustrated by our atmosphere. But at high temperatures, the reaction below can proceed to a measurable extent.
How does a base, such as NaOH, help to catalyze the benzoin condensation when thiamine is present
What is the pH of a solution prepared by adding 66.0 ml of 0.100 M HCl to 43.0 ml of 0.200 M NaOH
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